Teenage Mutant Ninja Turtles: Mutant Nightmare introduces unique features, including evolving characters, an experience point system, improved fighting control and more advanced multiplayer capabilities. Play solo as your favorite Turtle or team with up to 3 friends, enjoying exclusive cooperative playing features, as you take on opponents, the Foot Ninjas and powerful, well-known bosses from the TMNT universe. Old-school Turtle fans can even unlock an original TMNT arcade game.